Download - 2014 04 emerald siggery
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Emerald Siggery Coastal Process Scientist
South West Regional Coastal Monitoring Programme
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To promote a standard, repeatable and cost effective method of monitoring the coastal environment in the
South West
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Plymouth Coastal Observatory
Environment Agency
(SW Region)
SW Maritime Local Authorities
Plymouth University
Teignbridge District Council
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1st Phase of Programme 2006-2011
2nd Phase of Programme 2011-2016
100% grant aid funded - £4.4 million over 5 years
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Original Extent
Extension
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Various coastal defence schemes underway in the South West
Flood Risk Management Schemes
Managed Realignment Projects
Beach Management Schemes
Shoreline Management Plans
Monitoring required for each scheme – data rarely archived
Tourism spending in South West is over £9,000m annually
Long term trends needed to monitor impacts of climate change
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Topographic Surveys
Bathymetric Surveys
Hydrodynamic Data
LiDAR Surveys
Aerial Photography
Ecological Monitoring
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Real-Time Kinematic (RTK) GPS / GNSS
MLWS as seaward limit
Baseline survey at start of phase to get full coverage of all beaches
Interim surveys stakeout points on cross-shore profile lines
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Sand Bay, North Somerset
First Survey for SWRCMP in 2007
18 Surveys Completed to Date
2 Baseline Surveys – Full Coverage
13 Interim Surveys
3 Post-storm Surveys
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Reasons for using LiDAR:
Cost effective technique for covering large areas
Covers areas where ground surveying is difficult or dangerous
Problems:
Needs a clear sky
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Flown between September and May – minimise vegetation cover
Flown over MLWS for maximum coverage of the intertidal area
1m Resolution
Up to 6 flights in the Severn Estuary to date
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Flown Between May and September
10cm resolution
Flown over MLWS for maximum coverage of the intertidal area
3 sets of photography to date
2007
2009
2013/2014
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Standard Images
Used to visualise change
A Picture Speaks a Thousand Words…
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False Colour Infra-Red Images
Used to map specific inter-tidal habitats such as saltmarsh
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Aerial Photography Interpretation
1 complete survey to date Second survey scheduled for the current phase of the
Programme
Uses Integrated Habitat Classification System
Produced maps and GIS shapefiles
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Entire coast surveyed in the first Phase of the Programme
1 single beam bathymetric survey – up to Severn Beach
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Single-Beam Surveys
Multi-Beam Surveys
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St. Mary’s Sound
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Second Severn Crossing WaveRadar Rex
Installed June 2011
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Location 51° 21.21749' N 003° 1.10066' W
Approximate Water Depth
~ 13m CD
Tidal Range Approx. Spring Tidal Range =
11.2m
Weston Bay Directional WaveRider Buoy
Deployed September 2009
Minehead Directional WaveRider Buoy
Deployed December 2006
Location 51°13.71588'N
003° 28.31677' W
Approximate Water Depth
~ 10m CD
Tidal Range Approx. Spring Tidal Range =
9.6m
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Wave Height
Wave Period
Wave Direction
Sea Temperature
Wave Height
Wave Period
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Photo: EMU Limited
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Real-Time Data
Archived Data
Individual Wave and Tide Reports
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All data freely available from our website
Used by local authority engineers, consultants etc…
Annual Reports produced by PCO User friendly at-a-glance view
of beach condition Baseline to Spring Survey
Spring to Spring Survey
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Securing funding for Phase 3 of the Programme
Reviewing our data and exploring new technology
Continuing to build a long term dataset
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